[INFO] cloning repository https://github.com/AlexTuisov/Rust_search
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlexTuisov/Rust_search" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexTuisov%2FRust_search", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexTuisov%2FRust_search'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52a74c10ca6fc7425dbddf5ed200899828e30d8e
[INFO] testing AlexTuisov/Rust_search against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexTuisov%2FRust_search" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AlexTuisov/Rust_search
[INFO] finished tweaking git repo https://github.com/AlexTuisov/Rust_search
[INFO] tweaked toml for git repo https://github.com/AlexTuisov/Rust_search written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AlexTuisov/Rust_search on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AlexTuisov/Rust_search already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53b12ae3a579dcff2d386ca3f64bbb2b6bd74424aaebb1b1b2744030102dc978
[INFO] running `Command { std: "docker" "start" "-a" "53b12ae3a579dcff2d386ca3f64bbb2b6bd74424aaebb1b1b2744030102dc978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53b12ae3a579dcff2d386ca3f64bbb2b6bd74424aaebb1b1b2744030102dc978", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53b12ae3a579dcff2d386ca3f64bbb2b6bd74424aaebb1b1b2744030102dc978", kill_on_drop: false }`
[INFO] [stdout] 53b12ae3a579dcff2d386ca3f64bbb2b6bd74424aaebb1b1b2744030102dc978
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b52ca5f3d06051045cc4ce52348e8c4bbe208bc1312271b31fcfbfc7508367a
[INFO] running `Command { std: "docker" "start" "-a" "6b52ca5f3d06051045cc4ce52348e8c4bbe208bc1312271b31fcfbfc7508367a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]    Compiling half v1.8.3
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling ordered-float v3.9.2
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling search_core v0.1.0 (/opt/rustwide/workdir/search_core)
[INFO] [stdout] warning: unused import: `state::StateTrait`
[INFO] [stdout]  --> search_core/src/search/node.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::search::{action::Action, state::StateTrait};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> search_core/src/search/search.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::hash_map::DefaultHasher`
[INFO] [stdout]  --> search_core/src/search/search.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::hash_map::DefaultHasher;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hash`
[INFO] [stdout]   --> search_core/src/search/search.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |     use std::hash::{Hash, Hasher};
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hasher`
[INFO] [stdout]  --> search_core/src/search/search.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::hash::{Hash, Hasher};
[INFO] [stdout]   |                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `initial_node`
[INFO] [stdout]   --> search_core/src/search/solve.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let initial_node = Node::new_root();
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initial_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling app v0.1.0 (/opt/rustwide/workdir/rust_search_module/app)
[INFO] [stdout] warning: unused import: `search_core::problems::red_car_problem::red_car_problem::RedCarProblem`
[INFO] [stdout]  --> rust_search_module/app/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use search_core::problems::red_car_problem::red_car_problem::RedCarProblem;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `search_core::problems::tpp_problem::tpp_problem::TppProblem`
[INFO] [stdout]   --> rust_search_module/app/src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use search_core::problems::tpp_problem::tpp_problem::TppProblem;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `search_core::problems::zenotravel_fuel_problem::zenotravel_fuel_problem::ZenoTravelFuelProblem`
[INFO] [stdout]   --> rust_search_module/app/src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use search_core::problems::zenotravel_fuel_problem::zenotravel_fuel_problem::ZenoTravelFuelProblem;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `search_core::problems::zenotravel_problem::zenotravel_problem::ZenoTravelProblem`
[INFO] [stdout]   --> rust_search_module/app/src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use search_core::problems::zenotravel_problem::zenotravel_problem::ZenoTravelProblem;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `search_core::problems::zenotravel_time_problem::zenotravel_time_problem::ZenoTravelTimeProblem`
[INFO] [stdout]   --> rust_search_module/app/src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use search_core::problems::zenotravel_time_problem::zenotravel_time_problem::ZenoTravelTimeProblem;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "6b52ca5f3d06051045cc4ce52348e8c4bbe208bc1312271b31fcfbfc7508367a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b52ca5f3d06051045cc4ce52348e8c4bbe208bc1312271b31fcfbfc7508367a", kill_on_drop: false }`
[INFO] [stdout] 6b52ca5f3d06051045cc4ce52348e8c4bbe208bc1312271b31fcfbfc7508367a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6c2248ef411b083fd6ecec8b72e2619afcaf8bef433a955938bad30f0b2c301
[INFO] running `Command { std: "docker" "start" "-a" "a6c2248ef411b083fd6ecec8b72e2619afcaf8bef433a955938bad30f0b2c301", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `state::StateTrait`
[INFO] [stdout]  --> search_core/src/search/node.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::search::{action::Action, state::StateTrait};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling search_core v0.1.0 (/opt/rustwide/workdir/search_core)
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> search_core/src/search/search.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling app v0.1.0 (/opt/rustwide/workdir/rust_search_module/app)
[INFO] [stdout] warning: unused import: `std::collections::hash_map::DefaultHasher`
[INFO] [stdout]  --> search_core/src/search/search.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::hash_map::DefaultHasher;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hash`
[INFO] [stdout]   --> search_core/src/search/search.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |     use std::hash::{Hash, Hasher};
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hasher`
[INFO] [stdout]  --> search_core/src/search/search.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::hash::{Hash, Hasher};
[INFO] [stdout]   |                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `initial_node`
[INFO] [stdout]   --> search_core/src/search/solve.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let initial_node = Node::new_root();
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initial_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `search_core::problems::red_car_problem::red_car_problem::RedCarProblem`
[INFO] [stdout]  --> rust_search_module/app/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use search_core::problems::red_car_problem::red_car_problem::RedCarProblem;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `search_core::problems::tpp_problem::tpp_problem::TppProblem`
[INFO] [stdout]   --> rust_search_module/app/src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use search_core::problems::tpp_problem::tpp_problem::TppProblem;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `search_core::problems::zenotravel_fuel_problem::zenotravel_fuel_problem::ZenoTravelFuelProblem`
[INFO] [stdout]   --> rust_search_module/app/src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use search_core::problems::zenotravel_fuel_problem::zenotravel_fuel_problem::ZenoTravelFuelProblem;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `search_core::problems::zenotravel_problem::zenotravel_problem::ZenoTravelProblem`
[INFO] [stdout]   --> rust_search_module/app/src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use search_core::problems::zenotravel_problem::zenotravel_problem::ZenoTravelProblem;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `search_core::problems::zenotravel_time_problem::zenotravel_time_problem::ZenoTravelTimeProblem`
[INFO] [stdout]   --> rust_search_module/app/src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use search_core::problems::zenotravel_time_problem::zenotravel_time_problem::ZenoTravelTimeProblem;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `state::StateTrait`
[INFO] [stdout]  --> search_core/src/search/node.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::search::{action::Action, state::StateTrait};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashSet`
[INFO] [stdout]  --> search_core/src/search/search.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::HashSet;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::hash_map::DefaultHasher`
[INFO] [stdout]  --> search_core/src/search/search.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::hash_map::DefaultHasher;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hash`
[INFO] [stdout]   --> search_core/src/search/search.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |     use std::hash::{Hash, Hasher};
[INFO] [stdout]    |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Hasher`
[INFO] [stdout]  --> search_core/src/search/search.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::hash::{Hash, Hasher};
[INFO] [stdout]   |                       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `initial_node`
[INFO] [stdout]   --> search_core/src/search/solve.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let initial_node = Node::new_root();
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initial_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.86s
[INFO] running `Command { std: "docker" "inspect" "a6c2248ef411b083fd6ecec8b72e2619afcaf8bef433a955938bad30f0b2c301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6c2248ef411b083fd6ecec8b72e2619afcaf8bef433a955938bad30f0b2c301", kill_on_drop: false }`
[INFO] [stdout] a6c2248ef411b083fd6ecec8b72e2619afcaf8bef433a955938bad30f0b2c301
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 42cb263dde904da3ef32e2667993b84af16db41b36f911b36fe34cd530503a7d
[INFO] running `Command { std: "docker" "start" "-a" "42cb263dde904da3ef32e2667993b84af16db41b36f911b36fe34cd530503a7d", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `state::StateTrait`
[INFO] [stderr]  --> search_core/src/search/node.rs:3:37
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::search::{action::Action, state::StateTrait};
[INFO] [stderr]   |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]  --> search_core/src/search/search.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::collections::HashSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::hash_map::DefaultHasher`
[INFO] [stderr]  --> search_core/src/search/search.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::collections::hash_map::DefaultHasher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Hash`
[INFO] [stderr]   --> search_core/src/search/search.rs:30:21
[INFO] [stderr]    |
[INFO] [stderr] 30 |     use std::hash::{Hash, Hasher};
[INFO] [stderr]    |                     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Hasher`
[INFO] [stderr]  --> search_core/src/search/search.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::hash::{Hash, Hasher};
[INFO] [stderr]   |                       ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `initial_node`
[INFO] [stderr]   --> search_core/src/search/solve.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let initial_node = Node::new_root();
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_initial_node`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `search_core` (lib) generated 6 warnings (run `cargo fix --lib -p search_core` to apply 3 suggestions)
[INFO] [stderr] warning: `search_core` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr] warning: unused import: `search_core::problems::red_car_problem::red_car_problem::RedCarProblem`
[INFO] [stderr]  --> rust_search_module/app/src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use search_core::problems::red_car_problem::red_car_problem::RedCarProblem;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `search_core::problems::tpp_problem::tpp_problem::TppProblem`
[INFO] [stderr]   --> rust_search_module/app/src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use search_core::problems::tpp_problem::tpp_problem::TppProblem;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `search_core::problems::zenotravel_fuel_problem::zenotravel_fuel_problem::ZenoTravelFuelProblem`
[INFO] [stderr]   --> rust_search_module/app/src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use search_core::problems::zenotravel_fuel_problem::zenotravel_fuel_problem::ZenoTravelFuelProblem;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `search_core::problems::zenotravel_problem::zenotravel_problem::ZenoTravelProblem`
[INFO] [stderr]   --> rust_search_module/app/src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use search_core::problems::zenotravel_problem::zenotravel_problem::ZenoTravelProblem;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `search_core::problems::zenotravel_time_problem::zenotravel_time_problem::ZenoTravelTimeProblem`
[INFO] [stderr]   --> rust_search_module/app/src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use search_core::problems::zenotravel_time_problem::zenotravel_time_problem::ZenoTravelTimeProblem;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `app` (bin "app" test) generated 5 warnings (run `cargo fix --bin "app" --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/app-9a89c08a3263891a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/search_core-1376c470ab8d80b9)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test search::action::tests::test_create_action_with_parameters ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests search_core
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "42cb263dde904da3ef32e2667993b84af16db41b36f911b36fe34cd530503a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42cb263dde904da3ef32e2667993b84af16db41b36f911b36fe34cd530503a7d", kill_on_drop: false }`
[INFO] [stdout] 42cb263dde904da3ef32e2667993b84af16db41b36f911b36fe34cd530503a7d
